通过使用两个CI854A通信接口模块，在PROFIBUS-DP通信中支持主站冗余。主站冗余可以与CPU冗余和CEXbus冗余(BC810)结合使用。这些模块安装在DIN导轨上,直接与S800 l/O系统和其他l/O系统连接，包括所有PROFIBUS DP/DP-V1和FOUNDATION Fieldbus熟练系统。PROFIBUS DP必须在两个最外面的节点处终止。这通常通过使用带有内置终端的连接器来完成。为了保证正确的工作端接,必须插入连接器并供电。
CI854A
CI854A
PROFIBUS DP is a high-speed multi-purpose bus protocol (up to 12Mbit/s) used to interconnect field devices such as remote l/O, drives, low-voltage electrical equipment, and controllers. PROFIBUS DP can be connected to AC 800M through the CI854A communication interface. Classic CI854A includes two PROFIBUS ports for line redundancy, and it also supports PROFIBUS master station redundancy. CI854B is a new PROFIBUS-DP master station that can replace CI854A in new installations.
By using two CI854A communication interface modules, master station redundancy is supported in PROFIBUS-DP communication. Master station redundancy can be combined with CPU redundancy and CEXbus redundancy (BC810). These modules are installed on DIN rails and directly connected to the S800 l/O system and other l/O systems, including all PROFIBUS DP/DP-V1 and FOUNDATION Fieldbus proficient systems. The PROFIBUS DP must terminate at the two outermost nodes. This is usually achieved by using connectors with built-in terminals. To ensure correct working termination, it is necessary to insert the connector and supply power.
CI854A
CI854A
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CI854A
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